Copper is a good conductor of electricity. Which of the following is not a good conductor? A. Silver B. Rubber C. Gold D. Aluminum 相关知识点: 试题来源: 解析 B。解析:在自然科学中,橡胶(rubber)是绝缘体,不是电的良导体。而银(silver)、金(gold)和铝(aluminum)都是良好的电导体。从英语...
What is Copper? Copper is a chemical element, a reddish, extremely ductile (able to be drawn out into a thin wire) metal. It is an excellent conductor of electricity and heat. Where does copper come from? Copper is found in the free metallic state in nature. First used in 8000 BCE, ...
Since 1982, pennies are composed of 98% of what element? Explain why copper wire is a good conductor of electricity. Why is water a better shield against neutrons than lead or steel? Which metal cation is the best oxidizing agent? a) Pb2+ b) Cr3+ c) Fe2+ d) Sn2+ ...
The discovery of copper dates from prehistoric times. It is said to have been mined for more than 5000 years. It is one of man’s most important metals. Copper is reddish colored, takes on a bright metallic luster, and is malleable, ductile, and a good conductor of heat and electricity...
a. a poor conductor b. brittle c. malleable Copper: Copper is one of the metallic elements in the periodic table. Copper has an atomic number of 29. Copper is one of the earliest used elements in human history, with the earliest recorded uses being as far back as 8000 BC. ...
Copper prices are up 20% year to date, supported in part by arebounding economyin the U.S. and other parts of the world as the pandemic comes under control. Improving economies are key to copper demand since it's an industrial metal that's a good conductor of electricity. Copper is fou...
goodadj. 好的;优质的;符合标准的;可接受的;令人愉快的;令人满意的;合情理的;有说服力的;有充分根据的 addition to除。。。之外; conductorsn.<电>导体( conductor的名词复数 );售票员;(乐队)指挥;导管(套管的一种); metalsn.金属( metal的名词复数 );钢轨;五金; whichpron.哪一个;(…的)那个; arevi...
Does not give up.That crazy person is I. [translate] ayield-strength 产生力量 [translate] aThe Wizards Attack 巫术师攻击 [translate] asilver is the best conductor of electrictiy,copper following it colsely. 银是最佳的指挥electrictiy,跟随它的铜colsely。 [translate] ...
Copper is known to be a good conductor. 该被动句可以译为下列哪种汉语句子?A.译成汉语主动句B.译成汉语被动句C.译成汉语无主句D.译成汉语判断句的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化
aI am willing to do a picture of yourself, and that is true. I believe that I am, and always will be the same. 我是愿意做图片的你自己,并且那是真实的。 我相信我是和总是同样。[translate] a故宫是个参观的好地方。 Imperial Palace is the visit good place.[translate] ...